Graham Potter shakes Arsene Wenger’s hand and the Ostersund players go to greet their adoring fans. It will be interesting to see if they can have a tilt at the Swedish title in 2018. A lot depends on whether they can hang onto their star players and their manager.

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Dismal Arsenal limp through in Europa League after Östersund deliver scare

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Graham Potter applauds the fans at the end of the match. Photograph: Eddie Keogh/Reuters

Full-time: Arsenal 1-2 Ostersund (4-2 agg)

That’s it. Arsenal are through, Ostersund are out. But it is a magnificent performance from the Swedish side. The biggest credit I can give them is that I genuinely thought at half-time that they could pull off the upset, such was the quality of their play. A silly error at the beginning of the second half took away their momentum, but it’s still probably the best result in their history.

90+1 min: Chance for Welbeck, but still he can’t get his goal. He wins the ball back from a tired-looking Widgren, has one defender to beat in Papagiannopoulos, and can only drag a shot straight at Keita’s legs.

86 min: Ostersund are blowing, Edwards and Papagiannopoulos in particular, the former picking up a booking. Kolasinac is having more and more joy down Arsenal’s left, but some last ditch tackles and brave goalkeeping from Keita stop any danger.

84 min: Chance for Islamovic! Ooooo, that was close! Kolasinac gives Ghoddos far too much room, the Iranian crosses and Islamovic steals in ahead of Chambers, flicks the ball on and the ball squirts just wide of the far post. Ospina was nowhere, that was about a yard wide.

Ostersunds come close to a third as Islamovic’s flick goes just wide. Photograph: Marc Atkins/Offside/Getty Images

78 min: It’s taken 77 minutes, but this is Arsenal’s first sustained possession of the match. A good three minutes pass without Ostersund having a kick. They are strangling the game, as Arsenal fans appear to start filtering out of the stadium.

Ostersund’s fans, meanwhile, are in excellent voice. And why not, they are beating Arsenal.

74 min: Wilshere looks like he’s taken a knock, goes down holding his ankle. Wenger won’t like that, especially with Sunday in mind. Mkhitaryan also goes down grimacing, but he’s cup tied for Sunday’s final. He’s also been dreadful tonight.

68 min: Chance for Welbeck! Wow, this is actually quite a bad miss. Welbeck is obviously lacking in confidence. Iwobi does well to work some space, he dinks a cross to the near post and Welbeck has a free header, in the centre of the goal, six yards out, but only directs it straight into Keita’s gut.

65 min: “As an Arsenal fan I’d love to see the Gunners lose, just to see exactly how much rope Wenger has at Arsenal,” emails Matthew Stephens. “If losing to a Swedish team in its off-season doesn’t get him fired, presumably nothing would, short of him committing some kind of capital offence?”

63 min: The pace of the game has dropped off a little. That might be down to fitness, remember Ostersund’s domestic league season ended in November and doesn’t start again until April. Elneny breaks from deep with the ball and fires a long-range shot at Keita, who palms it safely wide. Comfortable enough save, but well hit.

60 min: Ghoddos meanwhile, arguably Ostersund’s most dangerous player, has gone a little quiet after a brilliant first half. A few neat touches but he’s having to come deeper to get the ball now. Still remarkable to think he only cost Ostersund £65,000. Ostersund have just signed him to a new contract and have reportedly just turned down a £5.5m offer from Celta Vigo.

58 min: Very impressed with Nouri at the base of midfield. He was brought off at half-time in the first leg, but has bossed the midfield. I don’t think he’s lost the ball once, apart from that failed trap of the ball in the first half, a spurned opportunity for Ostersund.

55 min: This has been an encouraging response from Ostersund. They could have easily gone into themselves after conceding that goal, but look like they’ve still got the confidence to take the ball to Arsenal. Hopcutt skips past Kolasinac like he isn’t there. It’s been an excellent performance from the Englishman thus far.

53 min: Chance for Ostersund! A free-kick wide on the left is flicked on at the near post and Mukiibi steals in at the back post – can he poke it home? No! Ospina bravely gets down well to smother it. Good goalkeeping.

GOAL! Arsenal 1-2 Ostersund (Kolasinac, 47, 4-2 agg)

That’s a shame, from a neutral’s point of view. But 90% of the Emirates breathes a huge sigh of relief. To be fair to Arsenal, they came out this second half like a train. Kolasinac beats his man and plays the ball inside, and suddenly Arsenal have four on four at the back. The ball goes wide on the right, Bellerin crosses to the back post and a horribly mis-kick from Mukiibi allows Kolasinac to volley the ball into the top corner from six yards out. Ooooo, that’s a terrible error.

46 min:Arsenal are looking to sure up the midfield, so naturally Wenger has brought on Granit Xhaka. He replaces Maitland-Niles, who was booked and had a torrid first half in central midfield.

“It’s amazing to see the difference in results now that both teams have each had a chance to play on a surface more suited to their abilities,” quips Robbie Borowczyk from Gammelstad in northern Sweden.

I don’t disagree with that. Holding can defend, but simply isn’t good enough with the ball at his feet, if Arsenal want to be a Champions League club again. Bellerin is good enough, but has been woefully out of position tonight, tactically he seems all at sea.

They probably don’t need reminding, but this competition is wide open for Arsenal to win. Earlier, Napoli went out on away goals to RB Leipzig, and Dortmund are 45 minutes away from going out to Atalanta on away goals. If Arsenal can get through this tie, they will probably be second favourites to win it (after Atlético, who cruised past Copenhagen).

43 min: Yellow card for Maitland-Niles, who quelled a dangerous Ostersund counter-attack by hauling Nouri to the turf. Maitland-Niles again got the wrong side, Elneny was again nowhere to be seen. These two are having an absolute stinker. And Ostersund still have 10 men! Pettersson is still receiving stitches on the Ostersund bench for his head injury!

36 min: Inch-perfect challenge from Pettersson on Mkhitaryan in midfield, but the referee rules it to be a free-kick. Not sure what he’s doing there, the referee Ivan Kruzliak has got two of three things wrong so far.